Ink pack



FIG. 1 is a front perspective view of an ink pack;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left side elevational view thereof; and,

FIG. 5 is a right side elevational view thereof. 

The ornamental design for an ink pack, as shown and described. 